Olgado, S. (1979). White potato socio-economic and marketing study: Philippines. Special Studies Division, Dept. of Agriculture.
芝加哥风格引文Olgado, S.S. White Potato Socio-economic and Marketing Study: Philippines. Quezon City: Special Studies Division, Dept. of Agriculture, 1979.
MLA引文Olgado, S.S. White Potato Socio-economic and Marketing Study: Philippines. Special Studies Division, Dept. of Agriculture, 1979.
警告：这些引文格式不一定是100％准确.